Now we may have more preachers out there than we have drinkers. But a fellow told me a story one time about a man down in Kentucky, where they make bourbon. And he said you can take a jigger, or two jiggers, and get by all right. But if you try to take the whole bottle, why you have lost what you started with. So don’t try to take it too quick. And don’t try to do all of it at once.

Lyndon B. Johnson (1908-1973) American politician, educator, US President (1963-69)

Speech (1965-04-02), “Remarks to a Group of Southern Negroes”

Johnson frequently used this metaphor. E.g., on submitting major policy legislation to Congress in small, individual bills, rather than as a full program:

It's like a bottle of bourbon. If you take it a glass at a time, it's fine. But if you drink the whole bottle in one evening, you have troubles. I plan to take a sip at a time and enjoy myself.
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And along the same lines:

Congress is like a whiskey drinker. You can put an awful lot of whiskey into a man if you just let him sip it. But if you try to force the whole bottle down his throat at one time, he'll just throw it up.
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